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// RUN: %clang_cc1 -ast-dump %s 2>&1 | FileCheck %s
// CHECK-LABEL: example0
void example0() {
double d = 2.0;
// CHECK: VarDecl{{.*}}rd 'double &'
// CHECK-NEXT: DeclRefExpr
double &rd = d;
// CHECK: VarDecl{{.*}}rcd 'const double &'
// CHECK-NEXT: ImplicitCastExpr{{.*}}'const double' lvalue <NoOp>
const double &rcd = d;
}
struct A { };
struct B : A { } b;
// CHECK-LABEL: example1
void example1() {
// CHECK: VarDecl{{.*}}ra 'struct A &'
// CHECK: ImplicitCastExpr{{.*}}'struct A' lvalue <DerivedToBase (A)>
A &ra = b;
// CHECK: VarDecl{{.*}}rca 'const struct A &'
// CHECK: ImplicitCastExpr{{.*}}'const struct A' lvalue <DerivedToBase (A)>
// CHECK-NOT: MaterializeTemporaryExpr
// CHECK: ImplicitCastExpr{{.*}}'const struct B' lvalue <NoOp>
const A& rca = b;
}
extern B f();
struct X {
operator B();
} x;
// CHECK-LABEL: example2
void example2() {
// CHECK: VarDecl{{.*}}rca 'const struct A &'
// CHECK: ImplicitCastExpr{{.*}}'const struct A' lvalue <DerivedToBase (A)>
// CHECK: MaterializeTemporaryExpr{{.*}}'const struct B'
// CHECK: ImplicitCastExpr{{.*}}'const struct B' <NoOp>
// CHECK: CallExpr{{.*}}B
const A &rca = f();
// CHECK: VarDecl{{.*}}r 'const struct A &'
// CHECK: ImplicitCastExpr{{.*}}'const struct A' lvalue <DerivedToBase (A)>
// CHECK: MaterializeTemporaryExpr{{.*}}'const struct B'
// CHECK: ImplicitCastExpr{{.*}}'const struct B' <NoOp>
// CHECK: CXXMemberCallExpr{{.*}}'struct B'
const A& r = x;
}
// CHECK-LABEL: example3
void example3() {
// CHECK: VarDecl{{.*}}rcd2 'const double &'
// CHECK: ImplicitCastExpr{{.*}} <IntegralToFloating>
const double& rcd2 = 2;
}
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